For Isla Alcatras :
No gale warning.
The reliability of the situation is very good.
Predominantly sunny in the morning, skies clouding over with storms forming in the afternoon. Risk of some spots of rain in the morning, possibility of showers in the afternoon. In the evening, clear spells, risk of mist forming.
Possibility of showers SE force 1 turning S force 2 in the middle of the day then SW. Gusts reaching 9 knots in the middle of the day. Slight sea. Low, fairly long swell from SSW. Good visibility becoming poor in the middle of the day then reduced by mist.